Electric motor adapter



FIG. 1 is a front, top, left perspective view of an electric motor adapter, showing the new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines of even length shown in the drawings illustrate portions of the electric motor adapter that form no part of the claimed design. 

CLAIM The ornamental design for an electric motor adapter, as shown and described. 